CLLS ▼ -0.6% - Cellectis S.A. $CLLS - Cellectis to Host Conference Call and Webcast on September 14 to Provide a Business Update Cellectis announced it will host a conference call and webcast on September 14 to provide a business update, though the stock declined 0.6% today. The modest move lower may reflect investor caution ahead of the update, or simply reflect normal intraday trading volatility unrelated to the announcement itself. 11-SEP-2026 04:30 PM ET